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Why does the blower in the attic vibrate during heating when it is really cold?

We have a Carrier heat pump system in our home, and the blower is located in the attic. When it is especially cold, the blower runs on high (there are three levels: high, medium, low). During this ...
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How do you remove the blower motor from a Lennox G40UH-48B-090-02?

I have a Lennox G40UH-48B-090-02 blower motor which sounds like it needs to replaced (Excessive noise and vibration). It is mounted horizontally so that when I remove the front panels, the inlet and ...
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Why does my furnace blower motor stop working after 20 minutes?

The furnace blower motor stops working after 20 minutes, but the central air unit outside continues to run. The blower motor will not start again until after it has cooled off or unless I assist the ...
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479 views

Can I manually run the blower on my Lennox G12Q3 furnace?

I have a Lennox G12Q3-120-6 model furnace. Does anyone know if there's a way to manually run just the blower without heat? There are no switches on the outside that I can see (other than the power ...